Volume 21, Number 7—July 2015
Research
Results from the National Legionella Outbreak Detection Program, the Netherlands, 2002–2012
Jeroen W. Den Boer
, Sjoerd M. Euser, Petra Brandsema, Linda Reijnen, and Jacob P. Bruin
, Sjoerd M. Euser, Petra Brandsema, Linda Reijnen, and Jacob P. Bruin
Table 5
Cluster locations reported for 266 Legionnaires’ disease patients, the Netherlands, 2002–2012*
| Reported cluster location | No. (%) clusters | Cluster type, no. (%) |
|
|---|---|---|---|
| Location† | Geographic‡ | ||
| Garden center | 27 (25.7) | 27 (27.6) | 0 |
| Hospital/health care setting | 17 (16.2) | 17 (17.3) | 0 |
| Residence | 10 (9.5) | 4 (4.1) | 6 (85.7) |
| Wellness center§ | 9 (8.6) | 9 (9.2) | 0 |
| Hotel | 7 (6.7) | 7 (7.1) | 0 |
| Cooling tower | 5 (4.8) | 5 (5.1) | 0 |
| Holiday park | 5 (4.8) | 5 (5.1) | 0 |
| Swimming pool | 4 (3.8) | 4 (4.1) | 0 |
| Industrial complex | 3 (2.9) | 2 (2.0) | 1 (14.3) |
| Car wash installation | 3 (2.9) | 3 (3.0) | 0 |
| Sports facility | 2 (1.9) | 2 (2.0) | 0 |
| Cruise ship | 2 (1.9) | 2 (2.0) | 0 |
| Other | 11 (10.5) | 11 (11.2) | 0 |
| Total | 105 (100.0) | 98 (100.0) | 7 (100.0) |
*Study period was August 1, 2002–August 1, 2012.
†A location cluster is defined as cases reported within 2 years of each other in >2 persons who were reported to have been exposed to the same potential source of infection during the 2–14 days before symptom onset.
‡A geographic cluster is defined as cases in >3 persons who lived <1 km apart and whose infections were reported within 6 months of each other.
§Recreational facility offering spas, saunas, fitness equipment, massages, etc.
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